Man-Made Examples of Joints:

By: Namratha Mohan and Anusha Mittal (5th Period)

Man-Made Examples of Joints:

By: Namratha Mohan and Anusha Mittal (5th Period)

Ball and Socket Joints:

Wii Nunchuk

The joystick portion of the nunchuk, "the ball", is able to freely move all around the rest of the nunchuk, or "the socket". This motion is similar to a ball and socket joint within the human body, such as the shoulder.

Tennis Fill and Drill

The tennis ball, or "the ball", is able to rotate all around "the socket", or the hole that the ball loosely fits in. The rotations made by the tennis ball in the "ball and socket joint" can be compared to that of a ball and socket joint, like the hip.

Chain of a Pen

The tiny ball inside of the chain represents a ball and socket joint, as it is able to voluntarily move within this chain without restrictions. This representation is similar to a ball and socket joint within a human skeleton, such as the the joint within the scapula and the humerus.

Wii Nunchuk

The joystick portion of the nunchuk, "the ball", is able to freely move all around the rest of the nunchuk, or "the socket". This motion is similar to a ball and socket joint within the human body, such as the shoulder.

Tennis Fill and Drill

The tennis ball, or "the ball", is able to rotate all around "the socket", or the hole that the ball loosely fits in. The rotations made by the tennis ball in the "ball and socket joint" can be compared to that of a ball and socket joint, like the hip.

Chain of a Pen

The tiny ball inside of the chain represents a ball and socket joint, as it is able to voluntarily move within this chain without restrictions. This representation is similar to a ball and socket joint within a human skeleton, such as the the joint within the scapula and the humerus.

Hinge Joints:

Glasses:

The corner of the glasses where the lens meets the frame symbolizes a hinge joint. The side of the glasses can only move freely in one direction; this is similar to a hinge joint, such as the elbow, in a human body.

Door hinge:

This door hinge depicts a hinge joint, as the door hinge allows the door to maneuver only in one direction. An equivalent to this door hinge within a human skeleton would be a knee joint, since the knee is able to move only back and forth.

Clipboard:

A clipboard perfectly demonstrates a hinge joint, because the "clip" can strictly shift in an upwards and downwards motion. A hinge joint similar to this in a human would be the joint between the humerus and the radius/ulna.

Glasses:

The corner of the glasses where the lens meets the frame symbolizes a hinge joint. The side of the glasses can only move freely in one direction; this is similar to a hinge joint, such as the elbow, in a human body.

Door hinge:

This door hinge depicts a hinge joint, as the door hinge allows the door to maneuver only in one direction. An equivalent to this door hinge within a human skeleton would be a knee joint, since the knee is able to move only back and forth.

Clipboard:

A clipboard perfectly demonstrates a hinge joint, because the "clip" can strictly shift in an upwards and downwards motion. A hinge joint similar to this in a human would be the joint between the humerus and the radius/ulna.

Gliding Joints:

Selfie Stick:

A selfie stick depicts a gliding joint since the metal rod is able to open up and close along the metal rod to adjust the height of the stick. A similar example that this can be compared to is the vertebrae.

Easel:

This easel is representing a gliding joint, as the stand portion used to adjust the height is able to glide upwards and downwards, similar to a gliding joint in a human skeleton. An example that the adjustable stand of the easel could be compared to would be the carpal bones in a human wrist.

Adjustable fan:

This adaptable fan portrays a gliding joint; since the white portion of the fan is able to slide up and down the metal rod, just like gliding joints within a human. A great example of a gliding joint in humans would be the tarsal bones in the foot.

Selfie Stick:

A selfie stick depicts a gliding joint since the metal rod is able to open up and close along the metal rod to adjust the height of the stick. A similar example that this can be compared to is the vertebrae.

Easel:

This easel is representing a gliding joint, as the stand portion used to adjust the height is able to glide upwards and downwards, similar to a gliding joint in a human skeleton. An example that the adjustable stand of the easel could be compared to would be the carpal bones in a human wrist.

Adjustable fan:

This adaptable fan portrays a gliding joint; since the white portion of the fan is able to slide up and down the metal rod, just like gliding joints within a human. A great example of a gliding joint in humans would be the tarsal bones in the foot.